Looking for addon name

I found a simulink model that contains a missing block from standard library. I have search it on google, but nothing was found. Does anyone know addon/library name/link for this block? Thank you.

[Cris LaPierre]

This is not a standard block created by MathWorks. This must be a custom library created by whoever created the original model.

Answer 1

[Walter Roberson]

That is likely https://github.com/isablanca/Power-System-Analysis-Toolbox/